13662036666 has 16 divisors (see below), whose sum is σ = 30360081600. Its totient is φ = 4554012204.

The previous prime is 13662036653. The next prime is 13662036671. The reversal of 13662036666 is 66663026631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126500286 + ... + 126500393.

It is an arithmetic number, because the mean of its divisors is an integer number (1897505100).

Almost surely, 2^13662036666 is an apocalyptic number.

13662036666 is an abundant number, since it is smaller than the sum of its proper divisors (16698044934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13662036666 is a wasteful number, since it uses less digits than its factorization.

13662036666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253000690 (or 253000684 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 13662036666 in words is "thirteen billion, six hundred sixty-two million, thirty-six thousand, six hundred sixty-six".